How long before I conceive?

Ok, girls, it's me, again. By the way, thanks to those who answered my messages - they were a big help! :)Anyways, I've been on the pill for over a year and have been off of it for only 3 days. Before I went on the pill, my periods were quite irregular. They would visit for a couple or a few months on a day at the beginning of the month and then it would skip the beginning of the month a couple to a few cycles later and start on a day at the end of the month. That's how they've always been - messed up! Will it take me longer to conceive because of that? Also, now that I'm off the pill, I have no clue when I'm suppose to start my next period. I always knew what day I usually started while I was on the pill, cuz it kept me regular. Now, I don't know when it's going to start. Help, anyone?? Thanks again!! :)